baber/WOPTO huggingface dataset:
Patent GB-1374211-A (GB)
Title: Method and apparatus for dispesning a fluidisable solid from a  pressure vessel
IPC: C21B5/00
Filed: 1972-02-07
Abstract: 1374211 Pneumatic conveyers SUDDEUTSCHE KALKSTICKSTOFF-WERKE AG 7 Feb 1972 [8 Feb 1971] 5584/72 Heading B8A [Also in Divisions G1 and G3] To dispense a fluidizable solid 3 to a chamber 17 at a low pressure P 4  from a vessel 1, a first gas flow is supplied at a pressure P 1  from source 7 into a lower region of the vessel through a gaspervious base 11 to fluidize the solid, a second gas flow is supplied at a pressure P 2  from source 5 into the vessel above the solid, and a third gas flow is supplied at a pressure P 3  from source 8 to a discharge pipe 4, P 1 >P 2 >P 3 >P 4 , and the pressures P 1 , P 2 , P 3  are regulated by control units 13, 15 to dispense a mixture having a constant predetermined gas/solid ratio and to maintain a constant mass flow rate of the solid. Control unit 15 compares the reading of weighing apparatus 14 supporting the vessel 1 with a set value of mass flow, and adjusts pressure P 2  to maintain the required mass flow. Control unit 13 receives signals of actual solid mass flow from unit 15 and of the combined first and third gas flows from a meter 16 and controls the gas/solid ratio by adjusting a valve 18 or 18a. The method is used for introducing calcium carbide from an immersion lance to desulphurize pig iron, or for introducing silica or aluminium into iron melts.
Patent GB-522621-A (GB)
Title: Improvements in and relating to rotary magnets for magnetos
IPC: H02K1/27
Filed: 1939-02-21
Abstract: 522,621. Magnetos. MAGNETOS LUCIFER SOC. ANON. Feb. 21, 1939, No. 5754. Convention date, March 18, 1938. [Class 35] A lighting magneto has an annular armature into which is fitted a rotary magnet composed of a permanent magnet 1 and polar enlargements 2, 3 of soft steel which is contained completely within the armature, and the enlargements are extended on at least one face of the magnet parallel with the axis of rotation. The magnet and laminated pole-pieces are held between two non-magnetic plates 4, 5 and the outer laminae are flanged at 8 ... 11. The polepieces need not be laminated.
Patent GB-973214-A (GB)
Title: Improvements in or relating to the control of composite mechanical drives
Inventor: NORTH NORMAN FREDERICK
IPC: F16H37/00
Filed: 1960-02-18
Abstract: 973,214. Variable speed control; valves. PLESSEY CO. Ltd. Feb. 17, 1961 [Feb. 18, 1960], No. 5764/60. Addition to 952,982. Headings F2D and F2V. [Also in Division F1] In a constant speed drive of the type described in the parent Specification wherein constant speed of an output shaft 1 driven through a variable ratio planet gear 4 by a variable input 2 is obtained by speed responsive control of an air motor 3 which controls the ratio of the variable gear 4 and may be driven in reverse for starting the engine by closing exhaust port 15 and connecting the air motor to a starting pressure air line 10, the changeover is effected by a valve 9 under the control of pneumatic pressure supplied from a starting pressure source 8 and from a compressor 6 driven by the engine 2. The valve comprises a valve spool 28 fast with differential pistons 36, 27 the former of which is acted upon by pressure air supplied through a duct 38 from the line 10 whilst the latter is acted on by pressure air supplied through a line 44 from the compressor 6 and from the line 10 through a restricted orifice 42. During starting compressor bleed air pressure is zero and the valve spool 28 moves right, position shown, under the pressure from the starting supply 8 to connect said supply through ports 31, 32 to the air motor line 14. When the engine has started the pressure supplied through line 44 from compressor 6 overcomes the pressure acting on piston 36 and moves the valve spool 28 left until a port 46 connected through line 22 to a restricted orifice 24, is opened in which position the valve spool blocks both the ports 31 from the pressure source 10 and ports 33 to exhaust port 15. Further movement of the valve spool is thus prevented until the engine reaches the lower limit of its normal operating range whereupon increased pressure from the compressor 6 completes leftward movement of the valve spool 28 to connect the air motor 3 through ports 32 and 33 to the exhaust port 15. An emergency valve 20 is opened when the speed of the output shaft or air motor exceeds a predetermined limit to vent valve chambers 40, 43 through lines 21, 22 whereupon the valve spool 28 is moved to its intermediate position where the air motor 3 is isolated from both the pressure line 10 and exhaust 15.
Patent GB-426519-A (GB)
Title: A process for the manufacture of chlorhydrins
IPC: C07C29/66
Filed: 1934-02-21
Abstract: <PICT:0426519/IV/1> An aliphatic olefinic hydrocarbon is subjected in excess and preferably in a finely-divided state to the action of a finely-divided aqueous solution of hypochlorous acid.  Mixtures of olefines with unreactive compounds, such as are obtained by cracking petroleum and shale oil, tars, pitches and asphalts and by the destructive distillation of brown coal, may be used, when the inert material serves to extract the products, if it is liquid, or if gaseous, is removed from time to time.  The chlorhydrin is recovered by distillation.  According to examples, ethylene, b -butylene, isobutylene, and mixed isobutylene and n-butane are treated in a reaction unit in which the air has been displaced by the respective olefines, so that the olefine is at all times in excess, with a spray, film or other finely-divided form of an aqueous solution of hypochlorous acid which is established outside the reaction chamber by known methods.  A dispersing agent may be present in either or both the reacting fluids.  The chlorhydrin mixture produced is drawn off, and a specified concentration of chlorhydrin and hydrochloric acid maintained in the circulating chlorine solution at all times by thus intermittently or continuously withdrawing a portion of the solution produced and replacing it by chlorine and water.  In the accompanying drawing a spray chamber 1 is fitted with one or more atomizers 9 for the solution of hypochlorous acid, introduced through lines 8 communicating with vessel 7, and the air in reaction chamber 1 is replaced by gaseous or vapourized olefine, at any suitable pressure and temperature introduced directly and/or by bubbling through a quantity of aqueous solution of chlorhydrin and hydrochloric acid in the lower part of the chamber.  A scrubbing tower 2 is provided with means 3 for introducing chlorine into the column, draw-off means 5 for removal of water-insoluble byeproducts, draw-off means 6 for removal of chlorhydrin, hydrochloric acid and water.  Fresh water is introduced at 13 and initially in tank 7, whence pump 11 provides for the circulation of the hypochlorous acid through the spray chamber where it meets the olefine from lines 14, and returns through the tower 2 to the tank 7.  The necessary filters, pumps and means for adjusting the temperature and pressure are included. Further specified olefines suitable for the conversion to the chlorhydrin include propylene, amylenes, butylenes, allene, butadiene, isoprene, butane-butene and other fractions from the cracking of petroleum products and generally tertiary olefines and those which can be maintained in a state of vapour at a temperature and pressure at which the free hypochlorous acid does not decompose. Specifications 265,259, [Class 2 (iii)], and 377,595 are referred to.
Patent GB-1157371-A (GB)
Title: Improvements relating to Electric Light Fittings
Inventor: WEST DEREK GEORGE WILLIAM
IPC: F21V17/16
Filed: 1966-02-10
Abstract: 1,157,371. Lighting fittings. F. W. THORPE Ltd. 31 Jan., 1967 [10 Feb., 1966], No. 5833/66. Heading F4R. [Also in Division E2] A bowl or diffuser 13 is detachably connected to a ceiling batten 11 by means of catches each of which comprises a plate 27 pivoted at 28 to , a bracket 25 and biased by a spring 26 towards either of two alternative positions in one of which, as shown, the diffuser can be removed from the batten and in the other of which the jaw 30a of the plate engages under a shoulder 19 of the diffuser and urges a flange 20 on the shoulder into abutment with a resilient gasket 17 on the batten. The diffuser can be secured or released merely by moving it towards or away from the batten.
Patent GB-1220601-A (GB)
Title: O-hydroxyaryl v-triazoles and the use thereof as uv absorbers
IPC: C07D249/06
Filed: 1968-02-06
Abstract: 1,220,601. U.V. protected polymeric materials. J. R. GEIGY A.G. 6 Feb., 1968 [7 Feb., 1967], No. 5915/68. Headings C3F, C3P and C3R. [Also in Divisions A5, C2, C4 and D1] Polymeric materials are protected against deterioration caused by U.V. radiation by incorporating therein triazoles of the formula wherein Z represents an optionally further substituted o - hydroxyphenyl or o - hydroxynaphthyl radical, X and Y independently represent hydrogen, a group -NR 1  acyl (in which acyl is -CO.R 3 , -SO 2 R 2  or -CO 2 R 2 ), a carboxyl group or a salt thereof, an ester -CO 2 R 2 , an amide -CONR 4 R 5 , a nitrile group or a monovalent substituent group (Q) the inclusion of which does not impart colour to the final compound which is bound to the triazole ring by a saturated acyclic carbon atom or a ring carbon atom and in which any optionally present fused ring system consists of at most 3-, 5- or 6-membered rings of which at most 2 are aromatic carbocyclic and at most one is heterocyclic, this heterocyclic ring concontaining at most 3 hetero atoms of which at most 3 are nitrogen and at most one is oxygen or sulphur, or X and Y together represent an optionally C 1-6 -alkyl-substituted tetramethylene group or an o-xylylene group optionally substituted in the benzene ring by C 1-6 -alkyl. sulpho or C 1-6  alkoxy group or X may also represent halogen or a nitro or s-triazinylamino group, in which R 1-5  are optionally substituted alkyl, cycloalkyl, aralkyl or aryl radicals and R 1 , R 3  and R 4  may also be hydrogen and R 4  and P 5  may together complete a 5- or 6-membered heterocyclic ring. The U.V. absorbers can be incorporated before, during or after the production of the polymer and can be used in association with other U.V. absorbers, antioxidants, e.g. amines and phenols, antioxidant synergists, e.g. fatty alcohols, and heat stabilizers, e.g. phosphites. Specified substrates include cellulose and derivatives thereof, condensation polymers, particularly polyesters and polyamides, and addition polymers. Examples relate to film-forming compositions based on (34) and (35) acetyl cellulose, (36) a co-polymer of styrene or methylmethacrylate and a polyester derived from maleic anhydride/tetrachlorophthalic anhydride / ethylene glycol/ diethylene glycol, (37) polymethylmethacrylate, (38) polyvinyl chloride, (39) polyethylene, (40) polypropylene, (41) polystyrene and (43) polycaprolactam or polyhexamethylene adipamide. Example 42 relates to a cellulose acetate-based lacquer.
Patent GB-617594-A (GB)
Title: A coated sheet for use in the preparation of photo-mechanical printing transparencies
IPC: G03F1/00
Filed: 1945-03-09
Abstract: 617,594. Coated flexible sheets. MAGID, H. M. March 9, 1945, No. 5923. [Class 140] [Also in Groups XV and XX] A light permeable backing sheet 7 is provided on one side, with a light imperm e a b 1 e two-layer coating 9 of which both layers comprise a colloidal adhesive and a non-drying plasticizer, the outer layer 11 having less plasticizer so that it is harder and more resistant to abrasion than the inner layer 13. The coating 9 is readily displaceable by drawing, sketching, impressing, typing or printing thereon, to produce a transparency suitable for use in exposing directly a resist covering for a printing surface. The backing sheet is preferably flexible and may be of cellulose acetate or nitrate, celluloid, ethyl cellulose, polystyrene rubber compound, rubber hydrochloride, synthetic resins such as a vinyl chloride-acetate copolymer, or paper. The colloidal adhesive, for the layers, may be cellulose acetate or nitrate, ethyl or benzyl cellulose, albumen, casein, natural and synthetic resins, natural and synthetic rubbers and rubber-like resins, shellac, adhesive phthalic anhydride derivatives, hydrogenated methyl abietate gums such as ester gums, modified adhesive starch or gelatin. The plasticizer may be an oil such as castor, soyabean, corn, peanut, rape seed, olive, palm. cotton seed, fish or mineral oil; or palmitic acid, linseed oil acids, halogenated mineral oil, di-butyl phthalate, di-ethyl phthalate, tricresyl phosphate, triphenyl phosphate triacetin. chlorinated naphthalene, Japan wax, paraffin, spermacetti, "Opal" wax, beeswax, refined naphthaline, tallow, stearic acid, fatty alcohols or sterols, or chlorinated diphenyl. The inner layer 9 includes a pigment to make it impervious to light. It is possible to use an outer layer of wax or of colloidal adhesive only, these substances uniting with possible absorption, or having an affinity for, the colloidal adhesive or plasticizer respectively of the inner layer. The layers are applied to the backing sheet with the aid of a solvent such as water, alcohol or toluol as by coating rolls and each layer is dried after application. An example indicates a composition containing shellac, nitrocellulose moistened with butyl alcohol, a halogenated hydrocarbon or oleic acid and methyl alcohol for both layers, the proportions of these ingredients varying, and the composition for the inner layer including carbon black to make it light impervious and that for the outer layer including a white pigment to facilitate drawing on the sheet or reading text matter which may be imprinted thereon.
Patent GB-921085-A (GB)
Title: Methods of loading fuel dispensers
Inventor: STROUSE ARTHUR FRANK
IPC: B65B31/04
Filed: 1960-02-19
Abstract: 921,085. Bottling. STROUSE Inc. Feb. 19, 1960, No. 5968/60. Class 125(2). A method of loading a fuel dispenser with an ether-type engine starting fuel in a pressurized state comprises the steps of feeding liquefied ether into the dispenser either alone or together with any fuel additives, and injecting a measured quantity of a propellant gas into the dispenser through a manually operatable, self-closing valve substantially instantaneously and at a pressure sufficiently high to allow substantially all of the contents of the dispenser to be expelled therefrom by opening the valve. The propellant gas may be a mixture of nitrous oxide and carbon dioxide. The fuel mixture may be refrigerated and fed into the dispenser at low temperature i.e. between 0 and 20‹F.
Patent GB-155153-A (GB)
Title: Apparatus for facilitating drawing
IPC: B43L13/02
Filed: 1920-02-27
Abstract: 155,153. Zanettini, A. Feb. 27, 1920. Draughting - machines. - A bar with a pivotable set-square attached to it is constrained to parallel motion by an arrangement of pulleys and strings tensioned by a spring or weight. In the construction of Figs. 1 and 2 the ends 6 of the bar 2 have flexible members 7 attached to them which are led over pulleys 8 and an arrangement of pulleys 9, 10, and are fastened to a common point F. The flexible members are kept in equal tension by a spring 11, as shown in Fig. 1, or by a weight 11<1>, as shown in Fig. 2. In the construction shown in Fig. 2, the pulley 9 is adjustable along either arm of the frame 12. A screw 4 clamps the set-square 1 to the bar 2 at any desired angle, while eccentric turn-screws 16 bearing against the edge of the bar may be used for fine adjustment. A frictional rubber plug fixed under the knob 5 may be used to retain the set-square in position when released.
Patent GB-578206-A (GB)
Title: Insecticidal coating compositions
IPC: C09D5/14
Filed: 1944-03-31
Abstract: An insecticidal composition comprises a film-forming vehicle and benzene hexachloride containing a significant proportion of g -benzene hexachloride.  The coating compositions include distempers, water paints, oil paints and pigmented or unpigmented resinous or oleo-resinous varnishes, cellulose derivative lacquers and wax polishes.  The benzene hexachloride may be incorporated in a pre-formed coating composition, e.g., a flat wall paint.  The incorporation may be effected by dissolving the benzene hexachloride in a solvent which is the same as, or compatible with, the solvent used in the paint and then mixing the solution with the paint. Alternatively the benzene hexachloride or a solution thereof may be incorporated at any stage during the mixing tender or pigment, e.g., zinc oxide.  An aqueous of the paint; or may be premixed with the exdispersion of the benzene hexachloride may be added to a preformed water paint.  The compositions may be applied by brushing dipping or spraying to articles such as furniture or kitchen appliances, flexible materials such as wall paper, woven fabrics, containers such as wooden boxes and the internal surfaces of structures such as rooms &c.  According to one example a paint consists of lithopone, china clay, congo gum, linseed oil varnish, white spirit, heavy naphtha and benzine hexachloride (containing 12 per cent, g -isomer).  The natural resin of this example may be replaced by linseed oil-glyceryl phthalate resin.  According to another example, the same benzene hexachloride (in finely divided form) is incorporated in a dispersion in water of congo gum linseed oil varnish, lithopone, paris white and animal glue.  Specification 573,689 is referred to.
Patent GB-814195-A (GB)
Title: Production of uranium metal
IPC: C22B60/02
Filed: 1945-03-09
Abstract: Uranium is produced by reaction of uranium trichloride with an alkali metal, e.g. sodium, potassium or lithium, or with an alkaline earth metal, e.g. calcium or barium.  The reaction is carried out in a crucible wholly or partly formed of a refractory material which may be sintered, e.g. zirconium oxide beryllium oxide, thorium oxide or magnesium oxide.  The crucible and its contents are placed in a container which is evacuated and filled with an inert gas, this operation preferably being repeated at least once.  The crucible is then heated to initiate the reaction and the temperature is preferably maintained above the melting point of uranium metal for sufficient time, e.g. at least two hours, to allow the uranium to be produced in massive form. U.S.A.  Specification 1,568,685 is referred to.
Patent GB-541716-A (GB)
Title: Improvements in, and connected with, means for draining condensate and venting air from steam heated cylinders
IPC: D21F5/10
Filed: 1940-04-04
Abstract: 541,716. Drying paper. SPIRAX MANUFACTURING CO., Ltd., and MILNES, A. April 4, 1940, No. 6072. [Class 34 (i)] A steam-heated chamber such as a drying cylinder a is provided with a thermostatic air-venting valve f which, as the cylinder is warmed by steam admitted through a pipe c, allows the displaced air to escape through a passage b and a condenser pipe f The valve closes when steam commences to escape with the air. The condensate is discharged through a pipe g containing a strainer g<1> and a trap g<2>. The trap is provided with a manually or thermostatically controlled steam vent valve.
Patent GB-272272-A (GB)
Title: Improvements in and relating to display devices
IPC: G09F1/06
Filed: 1926-03-04
Abstract: 272,272. Gee, J. E., and Gee, F. S. March 4, 1926. Calendars and date indicators.-A display device comprises a background 1 of magnetic material on which is mounted a chart, calendar, &c. 3 which is perforated at regular intervals 4 between the indications 5 to receive pole ieet 7 of a permanent magnet 6 which acts as a marker. The chart may be secured permanently or temporarily to the background by adhesive clips, &c., or by the marker 6. Specifications 171,414, 193,987, 215,575 and 235,947, [all in Class 3 (ii), Advertising &c. other than by moving &c.], are referred to.
Patent GB-1132805-A (GB)
Title: Apparatus for gas analysis
IPC: G01N7/04
Filed: 1967-02-09
Abstract: 1,132,805. Gas analysis. SOC. D'INSTRUMENTATION SCHLUMBERGER. Feb. 9, 1967 [Feb. 14,1966], No. 6143/67. Heading G1B. A gas-analyzing appliance comprises a pump for drawing in gas from a source through a tube 40 and for delivering a predetermined volume of the gas, an absorbtion chamber for reception of the gas delivered by the pump and in which the gas is reacted with a reagent for absorbing a component of the gas, the resulting reduction in gas pressure being measured, and a filter arranged in a holder 11, 13 in the intake passage 12 of the pump to remove solid particles from the gas and enable the opacity of the sample of gas to be measured. The pump comprises a handle 5 attached to a rod 4 having a piston 2, 3. Gas enters the pump through the passage 12, the filter being clamped between the holder members 11, 13 by the action of a spring 15 and bayonet cap 16. A freely mounted plate 43 allows the entry of air but closes the passage 12 on the return stroke of the pump. A non-return valve 27 is also fitted in the outlet passage 25 of the pump. One stroke of the pump is arranged to give a predetermined volume of air, which can be corrected for temperature as a temperature sensor 39 is . fitted in the passage 12. Air from the pump enters a sampling chamber 23 and is expelled to atmosphere through a passage 29. A plate 30 is mounted to rotate in the appliance housing to close off the passage 29 and passage 26 from the pump when it is desired to use the absorption chamber 37. After a predetermined number of strokes of the pump, the filter in the passage 12 can be removed to test the opacity of the gaseous sample. This entails removing the bayonet cap 16 and by means of a pin 34 and slot 35 connection will automatically rotate the plate 30 to close the passages 26, 29. The sample chamber then contains a known volume of sample gas. The chamber 37 and also a smaller cross-section chamber 38 are previously fitted with an absorption reagent e.g. sodium or potassium hydroxide for carbon dioxide or an acidic solution of chromous chloride for oxygen. A tap 21 connecting the chambers 23, 37 is opened and the appliance inverted. The gas in the chamber 23 bubbles through into the chamber 37, but more enters the chamber 38 due to the position of the dividing wall. The desired constituent of the gas sample is absorbed by the reagent reducing the gas pressure in the appliance. With the appliance still inverted a valve 46 is opened to vent the chamber 38 to atmosphere. A scale is marked on a transparent window 44 of the chamber 38 and by noting the level to which the liquid falls in this chamber a measure of the volume of the absorbed constituent in the gas sample may be obtained.
Patent GB-1422646-A (GB)
Title: Apparatus for pre-heating fuel for an internal combustion engine
IPC: F02M31/16
Filed: 1973-02-08
Abstract: 1422646 Heating liquid fuel LACREX BREVETTI S A 8 Feb 1973 6145/73 Heading F1B An I.C. engine fuel pre-heater, particularly for a diesel engine comprises a heat exchanger positioned between a fuel tank and an injection pump or carburetter and provided with an electrical heating source which consists of at least one halogen lamp. Fuel, for a diesel engine 7, is drawn from a tank 1 and passes through a first filter 2, which is surrounded by a heating jacket, along line 17 and through pipe 4 which is again surrounded by a jacket 3. Fuel then passes through a second filter 9 and subsequently through a heat exchanger 24, which is associated with a thermostat 23, a relay 22 and the starter motor switch key 29. First filter and heat exchanger Fig. 2. Filter 2 is enclosed by jacket 20 and has an inlet pipe 14 and an outlet pipe 15 through which exhaust gases or engine coolant enter and leave. Second heat exchanger Fig. 4. Fuel line 4 is wound around part of tube 3 which is enclosed by a jacket 24. Exhaust gases or engine coolant flow through tube 3. In the lower part of the jacket are two halogen lamps 27 and 28 which are switched on when the key 29 is inserted in the starter motor switch, but which are switched off, by means of the relay 22 during the period of time for which the starter motor is actually energized. The jacket 24 is made in two parts, on one of which the two lamps are mounted, so that the parts can be applied to the tube 3 in a radial direction, for ease of assembly.